Trabecula: Difference between revisions

Revision as of 23:55, 9 February 2025

Trabecula

A trabecula (plural: trabeculae) is a small, often microscopic, tissue element in the form of a small beam, strut, or rod. Trabeculae are typically found in spongy bone, also known as cancellous bone, and are crucial for providing structural support and strength to the bone while minimizing weight.

Structure

Trabeculae are composed of lamellae arranged in an irregular latticework of thin columns. These columns are oriented along lines of stress, which helps the bone resist forces from various directions. The spaces between trabeculae are filled with bone marrow, which can be either red or yellow, depending on the bone's location and the individual's age.

Function

The primary function of trabeculae is to provide structural support and strength to bones. They help distribute mechanical loads and stresses throughout the bone, reducing the risk of fractures. Trabeculae also play a role in the metabolic processes of bone, including the storage and release of minerals such as calcium and phosphorus.

Clinical significance

Trabecular patterns can be altered in various diseases and conditions. For example, in osteoporosis, the trabeculae become thinner and less dense, leading to increased bone fragility and a higher risk of fractures. In contrast, conditions such as osteopetrosis result in abnormally dense trabeculae, which can lead to brittle bones.

Related pages

References

Rho, J. Y., Kuhn-Spearing, L., & Zioupos, P. (1998). Mechanical properties and the hierarchical structure of bone. Medical Engineering & Physics, 20(2), 92-102.
Seeman, E. (2008). Bone quality: the material and structural basis of bone strength. Journal of Bone and Mineral Research, 23(12), 1933-1938.

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-'''Trabecula''' is a term used in various fields of biology to refer to various types of structures, but generally refers to any small, often microscopic, tissue element in the form of, or arranged like, a small beam, strut or rod.
+== Trabecula ==
-== Anatomy ==
+[[File:Coxa-valga-norma-vara-000.svg|thumb|Diagram showing different angles of the femoral neck, illustrating trabecular patterns.]]
-In [[anatomy]], trabeculae are often bundles or beams of connective tissue, such as in the [[spleen]]. They can also refer to a small, calcified, spicule in [[spongy bone]] that forms a network, providing structural support and serving as a framework for the attachment of bone marrow tissue.
+[[File:Bone-inside.jpg|thumb|Cross-section of bone showing trabecular structure.]]
+[[File:Typical_carcinoid_tumor_of_the_lung,_trabecular_pattern.jpg|thumb|Trabecular pattern in a lung tumor.]]
+[[File:Spongy_bone_-_Trabecular_bone_-_Normal_trabecular_bone_Trabecular_bone_etc_--_Smart-Servier_(cropped).jpg|thumb|Normal trabecular bone structure.]]
-== Cardiology ==
+A '''trabecula''' (plural: '''trabeculae''') is a small, often microscopic, tissue element in the form of a small beam, strut, or rod. Trabeculae are typically found in spongy bone, also known as [[cancellous bone]], and are crucial for providing structural support and strength to the bone while minimizing weight.
-In [[cardiology]], trabeculae carneae refers to the muscular ridges found on the inner walls of the [[ventricles]] of the heart. These ridges are thought to prevent suction that would occur with a flat surface, and increase the force of contraction without increasing the amount of contraction.
-== Ophthalmology ==
+== Structure ==
-In [[ophthalmology]], trabeculae refer to the mesh-like connective tissue in the eye that helps drain the [[aqueous humour]].
+Trabeculae are composed of [[lamellae]] arranged in an irregular latticework of thin columns. These columns are oriented along lines of stress, which helps the bone resist forces from various directions. The spaces between trabeculae are filled with [[bone marrow]], which can be either red or yellow, depending on the bone's location and the individual's age.
-== Botany ==
+== Function ==
-In [[botany]], trabeculae are plate-like strips of conductive tissue in mosses.
+The primary function of trabeculae is to provide structural support and strength to bones. They help distribute mechanical loads and stresses throughout the bone, reducing the risk of fractures. Trabeculae also play a role in the metabolic processes of bone, including the storage and release of minerals such as calcium and phosphorus.
-== See also ==
+== Clinical significance ==
-* [[Trabecular meshwork]]
+Trabecular patterns can be altered in various diseases and conditions. For example, in [[osteoporosis]], the trabeculae become thinner and less dense, leading to increased bone fragility and a higher risk of fractures. In contrast, conditions such as [[osteopetrosis]] result in abnormally dense trabeculae, which can lead to brittle bones.
-* [[Trabecular bone]]
-* [[Trabecular cartilage]]
+== Related pages ==
-* [[Trabecular meshwork]]
+* [[Bone]]
-* [[Trabecular part of right atrial auricle]]
+* [[Cancellous bone]]
+* [[Osteoporosis]]
+* [[Osteopetrosis]]
 == References ==
-<references />
+* Rho, J. Y., Kuhn-Spearing, L., & Zioupos, P. (1998). Mechanical properties and the hierarchical structure of bone. Medical Engineering & Physics, 20(2), 92-102.
+* Seeman, E. (2008). Bone quality: the material and structural basis of bone strength. Journal of Bone and Mineral Research, 23(12), 1933-1938.
 [[Category:Anatomy]]
-[[Category:Cardiology]]
-[[Category:Ophthalmology]]
-[[Category:Botany]]
-{{stub}}